April 30, 2019 DIRC

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Meeting Information

GlueX DIRC Meeting
Tuesday April 30, 2019
1:00 pm, EDT
JLab F326

Connection Using Bluejeans

  1. To join via Polycom room system go to the IP Address: (bjn.vc) and enter the meeting ID: 846453895.
  2. To join via a Web Browser, go to the page [1] https://bluejeans.com/846453895 .
  3. To join via phone, use one of the following numbers and the Conference ID: 846453895
    • US or Canada: +1 408 740 7256 or
    • US or Canada: +1 888 240 2560
  4. More information on connecting to bluejeans is available.


  1. Announcements
  2. Summer installation planning:
    • Window for upper box (Ernie)
    • Ongoing bar box light tightness work (Mark/Bill/All [2])
    • Cookies (Yunjie/Maria)
    • Plans for tests with LED fibers and canullas (Bill/Fernando)
    • All DIRC equipment removed form EEL126 for renovation
  3. Documentation
  4. Spring 2019 DIRC Commissioning (All)
    • Half of REST data processed with updated dirc_tree plugin (ver08_pass04). Disk failure on JLab farm prematurely ended the processing this past weekend.
      • Files located at /volatile/halld/home/jrsteven/RunPeriod-2019-01/dirc_monitoring/analysis_REST/ver08_pass04/merged/
    • Another pass will begin shortly to finish processing the full dataset
    • Reconstruction with FastDIRC (Yunjie)
    • Commissioning analyses (Ahmed)
  5. Software/simulations
    • Finalizing DIRC "as-built" geometry: JT model from survey/alignment (Yunjie/Stephanie)
    • FastDIRC geometry implementation and alignment work (Cris/Yunjie)
  6. Software overview and tasks (All)
  7. AOB